|
Ideal
for
routine
plant
quality
control
checks
and
research
laboratory
applications |
Falling
ball
viscometers
This
viscometer
is
extremely
easy to
use;
First
fill
tube
with
sample,
then
invert
tube,
allowing
the ball
to enter
the PTFE
screw.
Next,
restore
tube to
normal
position.
Finally
fill
tube
with
sample,
then
invert
tube,
allowing
the ball
to enter
the PTFE
screw.
Next,
restore
tube to
normal
position.
Finally,
turn the
knob to
release
the
ball,
and
measure
the time
of
descent.
Reading
the
viscometer
is
easythe
ball
moves
against
a white
background
with red
reference
lines.
Repeatability
with
good
technique
varies
from
0.2 to
1.0%,
depending
upon
time of
descent.
To time
falling
ball,
order
stopwatch/clock
on page
1207.
Viscometers
require
a 7 ml
sample
volume.
Each
viscometer
is
supplied
with one
glass
and one
316
stainless
steel
high-precision
ball.
For
higher
viscosity
ranges,
use the
optional
tantalum
ball
(order
separately).
Viscometers
are made
of
precision-bore
glass
tubing
with
stabilizing
beads.
The
ball-release
device
is
sealed
with a
Viton
O-ring.
Note: PTFE
O-rings
are
available
for use
with
liquids
that
adhere
to
vinton;
call our
Application
Specialists
for more
information.
Corrosion-resistant
DELRIN
makes up
the
other
plastic
viscometer
parts.
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